MC78L18ACPG

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The MC78L18ACPG is a fixed positive voltage regulator from the MC78L00A series, manufactured by onsemi. It provides a nominal output voltage of 18 V with a maximum output current capability of 100 mA. The device operates within an input voltage range of 20.7 V to 33 V and supports junction temperatures from 0°C to +125°C. Key electrical specifications include a line regulation of 325 mV and load regulation of 170 mV at 25°C. It features internal short-circuit current limiting and thermal overload protection for rugged operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Internal short circuit current limiting protects against output faults.
• Integrated thermal overload protection shuts down the circuit during excessive power conditions.
• Requires no external components for basic regulation in many applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Power supplies requiring regulated 18 V DC output
• Battery-powered equipment needing stable voltage rails
• General-purpose linear regulation circuits

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix 'CPG' corresponds to the TO-92 package and bulk shipping configuration. Confirm the 'AC' designation aligns with the required 0°C to +125°C operating temperature range for your application environment. Ensure compatibility with lead-free manufacturing standards if RoHS compliance is mandatory for your assembly process.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 18 V output is required with up to 100 mA load current. The TO-92 package is suitable for through-hole mounting where moderate power dissipation is manageable. Consider the dropout voltage characteristics relative to your minimum input supply voltage to ensure proper regulation under all load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the MC78L00A series of low-power positive voltage regulators. It shares architectural similarities with higher-current variants like the MC7800 and MC78M00 series but is optimized for lower power applications. The family offers various fixed output voltages and packaging options to suit different design constraints.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

MC78L18ABPG serves as a functional substitute with identical electrical characteristics but differs in the operating temperature range specification (-40°C to +125°C). Verify that the alternative package or temperature rating meets your specific environmental requirements before substitution.